I created a php voting system for my school, where only one student can vote 4 one candidate...
If a user login in 3 different system, he will be able to vote 3 times...
How can i make it in a way that if a user is online, he wont b able to login in another system (i.e sorry, user is online, u are not able to login)
If a user login in 3 different system, he will be able to vote 3 times...
How can i make it in a way that if a user is online, he wont b able to login in another system (i.e sorry, user is online, u are not able to login)